Add touch option to hide cursor on any touch input

include/types.h

@@ -17,6 +17,7 @@ typedef struct Config {
     bool exclude_root;
     bool ignore_scrolling;
     ignore_buttons_t ignore_buttons;
+    bool hide_on_touch;
     bool fork;
     bool debug;
     bool onescreen;

man/unclutter-xfixes.man

@@ -8,7 +8,7 @@ unclutter-xfixes - rewrite of unclutter using the X11-Xfixes extension
 
 == SYNOPSIS
 
-unclutter [*--timeout* _seconds_] [*--jitter* _radius_] [*--exclude-root*] [*--ignore-scrolling*] [*--ignore-buttons* _buttons_] [*--fork*|*-b*] [*--help*|*-h*] [*--version*|*-v*]
+unclutter [*--timeout* _seconds_] [*--jitter* _radius_] [*--exclude-root*] [*--ignore-scrolling*] [*--ignore-buttons* _buttons_] [*--hide-on-touch*] [*--fork*|*-b*] [*--help*|*-h*] [*--version*|*-v*]
 
 Compatibility arguments:
 
@@ -36,6 +36,9 @@ the cursor. This is a shortcut for *--ignore-buttons* '4,5'.
 Defines the mouse buttons which do not unhide the cursor when clicked. You can
 pass multiple button numbers by separating them with ','.
 
+*--hide-on-touch*::
+Hides the mouse cursor on touch events.
+
 *--fork*|*-b*::
 Fork unclutter to the background.
 

src/event.c

@@ -96,8 +96,12 @@ static void x_check_cb(EV_P_ ev_check *w, int revents) {
             last_cursor_pos.y = root_y;
         }
 
-        /* We don't bother checking the exact event since we only select events that interest us. */
-        cursor_show();
+        if (config.hide_on_touch && (cookie->evtype == XI_RawTouchBegin || cookie->evtype == XI_RawTouchUpdate)) {
+            cursor_hide();
+        } else {
+            /* We don't bother checking the exact event since we only select events that interest us. */
+            cursor_show();
+        }
         ev_timer_again(loop, idle_watcher);
     }
 }
@@ -178,6 +182,10 @@ static void event_select_xi(void) {
     XISetMask(mask, XI_RawMotion);
     XISetMask(mask, XI_RawButtonPress);
     XISetMask(mask, XI_RawTouchUpdate);
+    if (config.hide_on_touch) {
+        XISetMask(mask, XI_RawTouchBegin);
+        XISetMask(mask, XI_RawTouchUpdate);
+    }
 
     masks[0].deviceid = XIAllMasterDevices;
     masks[0].mask_len = sizeof(mask);

src/unclutter.c

@@ -38,6 +38,7 @@ Config config = {
     .ignore_scrolling = false,
     .ignore_buttons.count = 0,
     .ignore_buttons.buttons = NULL,
+    .hide_on_touch = false,
     .fork = false,
     .debug = false,
     .onescreen = false,
@@ -96,6 +97,7 @@ static void parse_args(int argc, char *argv[]) {
         { "exclude-root", no_argument, 0, 0 },
         { "ignore-scrolling", no_argument, 0, 0 },
         { "ignore-buttons", required_argument, 0, 0 },
+        { "hide-on-touch", no_argument, 0, 0 },
         { "fork", no_argument, 0, 'b' },
         { "version", no_argument, 0, 'v' },
         { "help", no_argument, 0, 'h' },
@@ -133,6 +135,9 @@ static void parse_args(int argc, char *argv[]) {
                 } else if (OPT_NAME_IS("exclude-root")) {
                     config.exclude_root = true;
                     break;
+                } else if (OPT_NAME_IS("hide-on-touch")) {
+                    config.hide_on_touch = true;
+                    break;
                 } else if (OPT_NAME_IS("root")) {
                     config.exclude_root = false;
                     break;
@@ -191,7 +196,7 @@ static void parse_args(int argc, char *argv[]) {
 }
 
 static void print_usage(char *argv[]) {
-    fprintf(stderr, "Usage: %s [--timeout <n>] [--jitter <radius>] [--exclude-root] [--ignore-scrolling] [--ignore-buttons <buttons>] [-b|--fork] [-v|--version] [-h|--help]", argv[0]);
+    fprintf(stderr, "Usage: %s [--timeout <n>] [--jitter <radius>] [--exclude-root] [--ignore-scrolling] [--ignore-buttons <buttons>] [--hide-on-touch] [-b|--fork] [-v|--version] [-h|--help]", argv[0]);
     fprintf(stderr, "\n");
     exit(EXIT_FAILURE);
 }